120200212121220 has 432 divisors, whose sum is σ = 458371369048320. Its totient is φ = 24957457620480.

The previous prime is 120200212121183. The next prime is 120200212121233. The reversal of 120200212121220 is 22121212002021.

It is a happy number.

120200212121220 is a `hidden beast` number, since 1 + 20 + 200 + 212 + 1 + 212 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120200212121193 and 120200212121202.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 198352846 + ... + 198957914.

It is an arithmetic number, because the mean of its divisors is an integer number (1061044835760).

Almost surely, 2^{120200212121220} is an apocalyptic number.

120200212121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120200212121220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229185684524160).

120200212121220 is an abundant number, since it is smaller than the sum of its proper divisors (338171156927100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120200212121220 is a wasteful number, since it uses less digits than its factorization.

120200212121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606416 (or 606400 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120200212121220 its reverse (22121212002021), we get a palindrome (142321424123241).

The spelling of 120200212121220 in words is "one hundred twenty trillion, two hundred billion, two hundred twelve million, one hundred twenty-one thousand, two hundred twenty".